Hello! Coming from a brass player of powerful music....you have 1000s of great options! Have you ever heard of Gustav Holst? Check him out on youtube. He did a suite for the planets of the galaxy. The "epic" songs in his suite are Jupiter, Mars, and Uranus. Another great epic piece is by Tchaikovsky called the 1812 overture finale. If you want some more laid back music, check out Bachs Cello courante suite #1. Please let me know if you like these, or if you want any other music.